نتایج جستجو برای: psettodes erumei

تعداد نتایج: 41  

Journal: :international journal of marine science and engineering 0
r. gilanshahi department of marine biology, science and research branch, islamic azad university, tehran, iran s. a. taghavimotlagh iranian fisheries research organization, p.o.box: 141556116- tehran, iran f. kaymaram iranian fisheries research organization, p.o.box: 141556116- tehran, iran s. m. r. fatemi department of marine biology, science and research branch, islamic azad university, tehran, iran gh. vosooghi department of marine biology, science and research branch, islamic azad university, tehran, iran

the growth parameters, mortality rates and exploitation population dynamic parameters and exploitation rate of psettodes erumei were assessed between july 2010 to june 2011 using length frequency analysis. the data were collected from landing sites of jask, bandar abass, kong and qeshm hormozgan province waters. using total weight (w) and total length (tl) data, the length- weight relationship ...

2006
Daniel Pauly

Comparative methods are presented which allow for quick and relatively reliable growth parameter estimates when growth data are not at hand. One of these methods involves the use of a newly developed "au ximetric grid.". An empirical equation for the estimation of natural mortality of any fish stock, given a set of growth parameters, is briefly reviewed. . . The methods are applied to data from...

Journal: :Fishery Bulletin 2021

The Indian halibut (Psettodes erumei) is an important flatfish species in tropical and subtropical waters of the northern Ocean. However, inappropriate aging methods used previous studies limited use age growth data from those studies. This study highlights importance correct identification sexually dimorphic growth, particularly if characteristics are to estimate mortality rates. Counts opaque...

ژورنال: اقیانوس شناسی 2014

روند رسیدگی تخمدان، شاخص گنادوسوماتیک و فراوانی مراحل باروری ماهی کفشک تیزدندان (Psettodes erumei) در آب‌های ساحلی خلیج فارس در استان هرمزگان به طور ماهانه 30 قطعه ماهی از فروردین ماه تا اسفند ماه 1391 بررسی شد. با توجه به نتایج بافت‌شناسی تخمدان، پنج مرحله توسعه جنسی شامل نابالغ، در حال توسعه، در حال بلوغ، در حال تخم‌ریزی و مرحله تخم‌ریزی کرده در ماهیان مشاهده گردید. بالاترین درصد فراوانی مرحل...

2015
Reza Khoshnood Nemat Jaafarzadeh Zahra Khoshnood Mehdi Ahmadi Pari Teymouri

In the residential area of the North Coast of the Persian Gulf, consumption of fish is a possible source of exposure to heavy metals and other pollutants, all of which may act as potential risk factors for serious syndromes and fatal diseases. Health risks associated with Pb, Cd, and Hg were assessed based on the target hazard quotients (THQ), which can be derived from concentrations of heavy m...

Aghanajafizadeh, S, Gholami, S, Naderi, M,

This study conducted to determine the amount of the heavy metals such as Cd, Ni, and Pb in the muscle tissue of Hoof benthic fish (Psettodes erumei) and urban pelagic fish () in Qeshm Island in the north of the Persian Gulf. Overall, the heavy metal content Lethrinus nebulosus of 30 tissue samples was randomly measured by atomic absorption spectrometer. The mean amount of Cd (0.16+ 0.002 ) and ...

A. A. Motalebi, B. Mohammadzadeh M. Yasemi, N. Monfared

 The objective of this study was to assess fillet yield, proximate composition and mineral contents of the Indian spiny halibut (Psettodes erumei) during different seasons. Fish samples (female = 100 and male = 100) were caught from the coastal waters of Bushehr province and body weight and length were taken to predict fillet weight and yield. Large differences in the fillet yield were observed...

A. A. Motalebi , B. Mohammadzadeh, M. Yasemi , N. Monfared ,

 The objective of this study was to assess fillet yield, proximate composition and mineral contents of the Indian spiny halibut (Psettodes erumei) during different seasons. Fish samples (female = 100 and male = 100) were caught from the coastal waters of Bushehr province and body weight and length were taken to predict fillet weight and yield. Large differences in the fillet yield were observed...

ژورنال: بوم شناسی آبزیان 2017
Alimirzaei, Mohammadreza, Ghorbani, Rasoul, Gorgin, Saeid, Kamrani, Ehsan,

The study was conducted to obtain some information about temporal and spatial variations of multifilament drift gillnet catch communities in coastal waters of Hormozgan Province (Persian Gulf) from October to March 2014. Totally, seven families were identified including Scombridae, Carangidae, Carcharhinidae, Sphyranidae, Stromatidae, Belonidae, and Pesttodidae with total biomass of 73.03%, 12....

ژورنال: پژوهش های جانوری 2015

رژیم غذایی ماهی کفشک تیزدندان Psettodes erumei در آبهای ساحلی خلیج فارس از فروردین تا اسفند 1391 با نمونه برداری ماهانه 30 قطعه ماهی بررسی شد. میانگین طول کل و وزن نمونه‌های بررسی شده به ترتیب 39/9 ± 47/38 سانتیمتر و 79/756 ±92/986 گرم بود. بیشترین تعداد معده‌های پر و بیشترین مقدار شاخص گاستروسوماتیک در ماه های مرداد (04/2 ± 22/5) و شهریور (28/2 ± 84/5) و کمترین مقدار شاخص گاستروسوماتیک در فصل ...

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